Your conversions are correct. I've been watching Minolta Autocords and Rolleicord V's on eBay for a little while now, and the clean/functioning ones all seem to be going for that price +/- a few dollars. Of course, this one was represented as clean/functioning.
I doubt I'll need speeds below 1/30 very often, and when I do I always have an RB67. Those situations will require a tripod and time spent setting up so it won't be a major inconvenience to bring out the big camera.
If the CLA were fully funded by the seller, would you then think this was a decent deal?